diff --git a/src/pretix/plugins/stripe/payment.py b/src/pretix/plugins/stripe/payment.py
index 979cac189..6950aae37 100644
--- a/src/pretix/plugins/stripe/payment.py
+++ b/src/pretix/plugins/stripe/payment.py
@@ -61,21 +61,13 @@ from text_unidecode import unidecode
 from pretix.base.decimal import round_decimal
 from pretix.base.forms import SecretKeySettingsField
 from pretix.base.forms.questions import (
-    guess_country,
-    guess_country_from_request,
+    guess_country, guess_country_from_request,
 )
 from pretix.base.models import (
-    Event,
-    InvoiceAddress,
-    Order,
-    OrderPayment,
-    OrderRefund,
-    Quota,
+    Event, InvoiceAddress, Order, OrderPayment, OrderRefund, Quota,
 )
 from pretix.base.payment import (
-    BasePaymentProvider,
-    PaymentException,
-    WalletQueries,
+    BasePaymentProvider, PaymentException, WalletQueries,
 )
 from pretix.base.plugins import get_all_plugins
 from pretix.base.services.mail import SendMailException
@@ -87,12 +79,10 @@ from pretix.helpers.urls import build_absolute_uri as build_global_uri
 from pretix.multidomain.urlreverse import build_absolute_uri
 from pretix.plugins.stripe.forms import StripeKeyValidator
 from pretix.plugins.stripe.models import (
-    ReferencedStripeObject,
-    RegisteredApplePayDomain,
+    ReferencedStripeObject, RegisteredApplePayDomain,
 )
 from pretix.plugins.stripe.tasks import (
-    get_stripe_account_key,
-    stripe_verify_domain,
+    get_stripe_account_key, stripe_verify_domain,
 )
 from pretix.plugins.stripe.utils import get_stripe_client
 from pretix.presale.views.cart import cart_session
diff --git a/src/pretix/plugins/stripe/views.py b/src/pretix/plugins/stripe/views.py
index 3151024b0..543a38ba9 100644
--- a/src/pretix/plugins/stripe/views.py
+++ b/src/pretix/plugins/stripe/views.py
@@ -59,8 +59,7 @@ from pretix.base.payment import PaymentException
 from pretix.base.services.locking import LockTimeoutException
 from pretix.base.settings import GlobalSettingsObject
 from pretix.control.permissions import (
-    AdministratorPermissionRequiredMixin,
-    event_permission_required,
+    AdministratorPermissionRequiredMixin, event_permission_required,
 )
 from pretix.control.views.event import DecoupleMixin
 from pretix.control.views.organizer import OrganizerDetailViewMixin
@@ -71,8 +70,7 @@ from pretix.plugins.stripe.forms import OrganizerStripeSettingsForm
 from pretix.plugins.stripe.models import ReferencedStripeObject
 from pretix.plugins.stripe.payment import StripeCC, StripeSettingsHolder
 from pretix.plugins.stripe.tasks import (
-    get_domain_for_event,
-    stripe_verify_domain,
+    get_domain_for_event, stripe_verify_domain,
 )
 from pretix.plugins.stripe.utils import get_stripe_client